add dovecot quota checking

README.md

@@ -64,6 +64,9 @@ mynetworks: []
 
 # Postfix is the destination for the domains listed here
 mydestination: []
+
+# Check quota with dovecot at 127.0.0.1:12340
+check_dovecot_quota: false
 ```
 
 **postfixmaps**

defaults/main.yml

@@ -34,5 +34,6 @@ postfix:
     result_attributes:
       aliases: mailForwardingAddress
       mailboxes: mailMessageStore
+  check_dovecot_quota: false
 
 postfixmaps: []

templates/main.cf.j2

@@ -77,6 +77,9 @@ smtpd_recipient_restrictions =  permit_mynetworks,
                                 reject_unknown_recipient_domain,
                                 reject_unauth_destination,
                                 reject_non_fqdn_recipient,
+                                {% if postfix.check_dovecot_quota -%}
+                                check_policy_service inet:127.0.0.1:12340,
+                                {% endif -%}
                                 permit
 
 {%  if ("mailbox_transport" in postfix and postfix.mailbox_transport == "dovecot")